[An experimental study of the psychotropic effects of aspartic acid from the aspect of age].

After acute injections to adult and 90-day old rats aspartic acid in doses of 100-500 mg/kg increased the locomotor and exploratory activity during the open-field test and in a dose of 100 mg/kg exerted the antidepressant effect during the forced swimming test. Following treatment for 10 days the amino acid in a dose of 10 mg/kg disrupted acquisition of passive avoidance reaction of young rats and in a dose of 100 mg/kg inhibited learning of active avoidance reaction in adult rats.